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19
Sep
2024
Technical Reports
Positive Train Control Communication Failures and Their Impacts: Case Study Using Generalized Train Movement Simulator
Subject
Research,
Communications,
Train Control
Keywords: PTC; GTMS; rail system simulation
Abstract: Railroads with Positive Train Control (PTC) are experiencing increased delays due to communication failures and outages, during which trains are compelled to move at slower...
Report Number
DOT/FRA/ORD-24/39
Office
RDI-23
19
Sep
2024
Technical Reports
A Systems-Theoretic Computational Model of Human Performance in an Advanced Railroad Dispatch Operation
Subject
Research,
Human Factors
Keywords: Cognitive workload, human performance modeling, railroad dispatcher, discrete event simulation, transportation network operations control centers
Report Number
DOT/FRA/ORD-24/41
Office
RDI-24
19
Sep
2024
Technical Reports
LiDAR Grade Crossing Data Collection and Storage Services for High Profile Grade Crossings
Subject
Research,
Communications,
Train Control
Keywords: LIDAR; GRADE CROSSING; MOTORIST SAFETY; ATIP
Abstract: This report summarizes work performed to improve identification of high-profile grade crossings throughout the nation’s railway network. In May 2019 two rail survey vehicles...
Report Number
DOT/FRA/ORD-24/40
Office
RDI-23
19
Sep
2024
Research Results
Railroad Spike Failure Mitigation: Investigation of Tie Plate Hold-Down Elements
Subject
Research,
Track
Keywords: Broken spikes; spring washers; spring specifications; hold-down load; resiliency; elastic fasteners; stress relaxation
Abstract: The Rail Transportation and Engineering Center (RailTEC) at the University of Illinois Urbana-Champaign (UIUC) investigated methods to mitigate timber tie spike failures. This...
Report Number
RR 24-11
Office
RDI-21
17
Sep
2024
Other Reports
Tri-met GWRR 240 Program approval letter
Subject
Engineer Certification
Keywords: Engineer